Multibit Classic is no longer being updated so It's better to switch to another wallet where fees are calculated as should be. In the meantime, you can send your transaction to ViaBTC:
https://www.viabtc.com/tools/txaccelerator/ . There is an hourly limit though, and with a lot of transaction being unconfirmed lately due to a spam attack probably, you will need to check every a few minutes to send your transaction there.
Okay thanks for the feedback. I'll give them a try. Can someone recommend a wallet where I can take my public and private key to from multibit? I like to keep my BTC address as invested in a crowdsale. Any feedback would be great!
Thanks,
Brian
Viabtc right now is really hard to succeed when sending your TXID but always be a first to send your TXID in viabtc use the forum time and start to send sample 11:59 or 3:59 keep send until 12:02 or 4:02 so that you can be the 1 in 100 txid will be mine in the next block..
I also experience of delay these fast few days and experience i think 1 day since its too long time for me to receive because i pay a fee for almost 20k sat it takes longer time to sent. i use viabtc yesterday and my sending amount was sent..
Hope it helps.
About your new question i think you can try import it in electrum you can keep your private keys and public key.. you can also try in blockchain for web wallet.